新人教必修五 Unit1 Great scientists-Reading[阅读课件]

Cholera is the illness caused by a bacterium(细菌) called Vibria cholerae(霍乱弧菌) . It infects people’s intestines (肠), causing diarrhea(腹泻), vomiting(呕吐) and leg cramps(抽筋) .
Para. 2:Which theory is right? Para. 3: Test two theories Para. 4: Mark the death on a map Para. 5: Find the source of the water supporting Para. 6: Find other deathsevidence: Two
Do you know how to prove a new idea in scientific research? eight stages
What order would you put them in?
⑦ ③ ④ ② ① ⑤ ⑧ ⑥
Make a conclusion Think of a method Collect results Make up a question Find a problem Analyse the results Repeat if necessary Find supporting evidence
1. What happened in 1854?
Cholera outbreak hit London.
2. How many people died in 10 days? 500
3. Why is there no death at No. 20 and 21 Broad Street as well as at No. 8 and 9 Cambridge Street?
Unit 1 Great Scientists
SARS, an deadly infectious disease hit China.
Which person impressed you most during the SARS?
Zhong Nanshan (钟南山)
JohnБайду номын сангаасSnow
•British ( 1813~ 1858) •a figure(人物) in the history of public health, epidemiology(流行病学) and anesthesiology(麻醉 学)
Why couldn’t the cholera be under control at first? Neither its cause, nor its cure was understood.
What’s the two theories?
Strange cloud in the air that attacked people. People absorbed the disease with their meals.
Polluted water carried the disease
Paragraph 7:
Prevention of Cholera
John Snow defeated King Cholera
Detailed reading
What was this map used for in 1854? Finding out the cause of Cholera.
Skim and Scan
• What happened in 1854? • How many people died in 10 days? • Why is there no death at No. 20 and 21 Broad Street as well as at No. 8 and 9 Cambridge Street?
These families had not drunk the water from the Broad Street pump.
Put the correct stages into the reading about research into a disease.
Main ideas Para. 1: About cholera
When the cause was found, what did the people do？ Remove the handle from the water pump so it could not be used.
What are John Snow’s suggestions?
① The source of all water supplies should be examined. ② New methods of dealing with polluted water should be found. ③ The water companies were also instructed not to expose people to polluted water anymore.
What is Cholera?
John Snow defeats “King cholera”
What’s the main idea of the passage? A. John Snow was a well-known doctor in London. B. The cause of Cholera was polluted water. C. The source of all drinking water should be examined. D. How did John Snow collect, analyze the information, find the cause of the disease and solve it .